Area of distribution and weediness of Falcaria vulgaris Bernh.

Object description Download GIS-layers


Object specialist - S.Yu. Larina,
GIS-specialist - I.A. Budrevskaya

Date of creation:



1:20 000 000

Accuracy of map:

Map was created based on materials of maps of natural scale 1:5 000 000 - 1:100 000 000.


"Alber's Equal Area Conic for the USSR", 9, 1001, 7, 100, 0, 44, 68, 0, 0

Basic contents:

Vector map. Area of distribution is shown by polygon (main distribution) and by points (sporadic distribution). Zone of weediness is shown by polygon.

Accuracy of classifier:

The weed area is subdivided into two zones, one representing species distribution, and the second where weed is considered a serious pest. Within the weed area of Falcaria vulgaris the zones of weediness were established according to criteria of occurrence (% of fields where this species is found) and abundance (expressed as projective cover of this species in the field (in % to the field area)) where the occurrence of this species exceeded 20% with its abundance (projective cover) more than 15% (Tanskii et al., 1998). Points represent locations where sporadic occurrence has been reported.

Method of map production:

Published literature was reviewed, including Atlases, monographs and papers. Occurrence data were obtained from herbarium specimens, floras, monographs and papers. The area of distribution was determined according to the maps taken from the publications of Hulten & Fries (1986) and Volkov (1935). The areas of weediness were established according to Korovina (1981) and coordinated with the limits of arable lands. The sites of sporadic distribution of Falcaria vulgaris, in addition to the data of Hulten & Fries (1986), were depicted in the territory of Western Siberia based on the work of Peshkova (1996) and Studenikina (2000). The sporadic distribution of this species within the Baltic States was determined according to the following sources: Hulten & Fries (1986), Motekaitite (1985), Shishkin (1950). The sites of sporadic distribution of Falcaria vulgaris within the Caucasus were determined according to Grossgheim (1967). A part of the sporadic distribution in Western Siberia was determined according to Peshkova (1996), Hulten & Fries (1986) and Volkov (1935). Data were then compiled through scanning and geo-referencing to develop a composite vector map. The biologist, together with the GIS specialist, drew a composite weed distribution area based on compiled data.

Reference citations:

Grossgeim, A.A. 1967. Flora of the Caucasus. V. 7. Leningrad: Nauka. 894 p. (In Russian)
Hulten E., Fries M. 1986. Atlas of North European Vascular Plants, North of the Tropic of Cancer. Konigstein. V. 1-3: 1172.
Keller B.A., ed. 1934. Weed plants of the USSR. V. 3. Leningrad: AN SSSR. 448 p. (In Russian)
Korovina O.N., ed. 1981. Weed plants of wheat sowings in the USSR. Catalogue of VIR world collection. N. 320. Leningrad: VIR. 68 p. (In Russian)
Melnichuk O.S., Kovalivska G.M. 1972. Atlas of the most widespread weeds of the Ukraine. Kiev: Urozhai. 27-28 p. (In Ukrainian)
Motekaitite V.P. 1985. About new and rare ruderal species in Lithuanian SSR. Botanicheskii zhurnal, 70(10): 1410-4. (In Russian)
Nikitin, V.V. 1983. Weed plants of the USSR flora. Leningrad: Nauka. 454 p. (In Russian)
Peshkova, G.A. 1996. Flora of Siberia. V. 10. Novosibirsk: Nauka. 254 p. (In Russian)
Rostov State Pedagogical University. 2004. Sickleweed. Virtual herbarium of Rostov region. Rostov: http://rspu.edu.ru/projects/plants/falcaria.html (In Russian).
Shishkin, B.K., ed. 1950. Flora of the USSR. V. 16. Moscow-Leningrad: AN SSSR. 648 p. (In Russian)
Sickleweed. 2004. Weeds: Database of Grass master. Human garden: http://humangarden.ru/sofia/findnewdb.php?rast=1501 (In Russian).
Studenikina E.Yu. 2000. About rare species of Biya-Katun interfluve within piedmonts and low-mountain relief of Altai. Botanicheskii zhurnal, 85(1): 149-51. (In Russian)
Tanskii V.I., Levitin M.M., Ishkova T.I., Kondratenko V.I. 1998. Phytosanitary diagnostics in integrated managemant of cereals. In: Novozhilov K.V., ed. Compendium of methodical recommendations in plant protection. St. Petersburg: VIZR. 5-55 p. (In Russian)
Ulyanova T.N. 1998. Weed plants in flora of Russia and other CIS countries. St. Petersburg: VIR. 343 p. (In Russian)
Visyulina O.D., ed. 1970. Weeds of Ukraine (reference-identification guide). Kiev: Naukova Dumka. 508 p. (In Ukrainian)
Volkov A.N., ed. 1935. Areas of distribution of the major weed plants in the USSR. Moscow-Leningrad: Publishing House of Kolchoz & Sovchoz Literature. 153 p. (In Russian)

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